POROUS COATING OF INK JET MEDIUM HAVING CHEMICALLY BONDED ACTIVE LIGAND

摘要

PROBLEM TO BE SOLVED: To improve an image fading resistance and a moisture resistance of an ink jet inking image on a medium having a porous coating as a base.;SOLUTION: In a coated substrate for ink printing of an ink jet composed of a substrate on which a porous coating is coated, the porous coating is composed of silica covalently bonded to an active ligand via an reactive radical. In one embodiment, a chelating agent, an ultraviolet radiation blocking agent and/or a hindered amine photostabilizer which are chemically bonded can be practically uniformly distributed on the silica.;COPYRIGHT: (C)2004,JPO